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Generic Fault Codes & DTC List

Manufacturer and ECU-specific fault-code meanings. Check the stated ECU, model and code format against your diagnostic scan.

Generic fault codes — page 17
CodeMeaningApplicability
P0431Warm up catalytic converter, bank 2 -efficiency below thresholdGeneric Generic OBD
P0432Main catalytic converter, bank 2 -efficiency below thresholdGeneric Generic OBD
P0433Heated catalytic converter, bank 2 -efficiency below thresholdGeneric Generic OBD
P0434Heated catalytic converter, bank 2 -temperature below thresholdGeneric Generic OBD
P0435Catalytic converter temperature sensor, bank 2Generic Generic OBD
P0436Catalytic converter temperature sensor, bank 2 range/performanceGeneric Generic OBD
P0437Catalytic converter temperature sensor, bank 2 -low inputGeneric Generic OBD
P0438Catalytic converter temperature sensor, bank 2 high inputGeneric Generic OBD
P0439Catalytic converter heater, bank 2 -control circuit malfunctionGeneric Generic OBD
P043ACatalyst Temperature Sensor CircuitGeneric Generic OBD
P043BCatalyst Temperature Sensor Circuit Range/PerformanceGeneric Generic OBD
P043CCatalyst Temperature Sensor Circuit LowGeneric Generic OBD
P043DCatalyst Temperature Sensor Circuit HighGeneric Generic OBD
P043EEvaporative Emission System Leak Detection Reference Orifice Low FlowGeneric Generic OBD
P043FEvaporative Emission System Leak Detection Reference Orifice High FlowGeneric Generic OBD
P0440Evaporative emission (EVAP) system -malfunctionGeneric Generic OBD
P0441Evaporative emission (EVAP) system -incorrect flow detectedGeneric Generic OBD
P0442Evaporative emission (EV AP) system -small leak detectedGeneric Generic OBD
P0443Evaporative emission (EVAP) canister purge valve circuit malfunctionGeneric Generic OBD
P0444Evaporative emission (EVAP) canister purge valve open circuitGeneric Generic OBD
P0445Evaporative emission (EVAP) canister purge valve -short circuitGeneric Generic OBD
P0446Evaporative emission (EVAP) system, vent control -circuit malfunctionGeneric Generic OBD
P0447Evaporative emission (EVAP) system, vent control -open circuitGeneric Generic OBD
P0448Evaporative emission (EVAP) system, vent control short circuitGeneric Generic OBD
P0449Evaporative emission (EVAP) system, vent valve circuit malfunctionGeneric Generic OBD
P044AExhaust Gas Recirculation Sensor "C" CircuitGeneric Generic OBD
P044BExhaust Gas Recirculation Sensor "C" Circuit Range/PerformanceGeneric Generic OBD
P044CExhaust Gas Recirculation Sensor "C" Circuit LowGeneric Generic OBD
P044DExhaust Gas Recirculation Sensor "C" Circuit HighGeneric Generic OBD
P044EExhaust Gas Recirculation Sensor "C" Circuit Intermittent/ErraticGeneric Generic OBD
P044FSecondary Air Injection System Switching Valve "A" Circuit HighGeneric Generic OBD
P0450Evaporative emission (EVAP) pressure sensor -circuit malfunctionGeneric Generic OBD
P0451Evaporative emission (EVAP) pressure sensor range/performance problemGeneric Generic OBD
P0452Evaporative emission (EVAP) pressure sensor -low inputGeneric Generic OBD
P0453Evaporative emission (EVAP) pressure sensor high inputGeneric Generic OBD
P0454Evaporative emission (EVAP) pressure sensor circuit intermittentGeneric Generic OBD
P0455Evaporative emission (EVAP) system -large leak detectedGeneric Generic OBD
P0456Evaporative emission (EVAP) system -very small leak detectedGeneric Generic OBD
P0457Evaporative emission (EVAP) system -leak detected (filler cap loose/off)Generic Generic OBD
P0458Evaporative emission (EVAP) system, EVAP valve -circuit lowGeneric Generic OBD
P0459Evaporative emission (EVAP) system, EVAP valve -circuit highGeneric Generic OBD
P045AExhaust Gas Recirculation "B" Control CircuitGeneric Generic OBD
P045BExhaust Gas Recirculation "B" Control Circuit Range/PerformanceGeneric Generic OBD
P045CExhaust Gas Recirculation "B" Control Circuit LowGeneric Generic OBD
P045DExhaust Gas Recirculation "B" Control Circuit HighGeneric Generic OBD
P045EExhaust Gas Recirculation "B" Control Stuck OpenGeneric Generic OBD
P045FExhaust Gas Recirculation "B" Control Stuck ClosedGeneric Generic OBD
P0460Fuel tank level sensor -circuit malfunctionGeneric Generic OBD
P0461Fuel tank level sensor range/performance problemGeneric Generic OBD
P0462Fuel tank level sensor -low inputGeneric Generic OBD

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